Polymer light-emitting diode prepared with an ionomer and polyaniline

Light-emitting diodes of poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene] (MEH-PPV) have been fabricated from sodium sulphonated polystyrene (SSPS) ionomer as an electron-injecting and hole-blocking material and polyaniline doped with camphor sulphonic acid (PANI-CSA) as a polymer anode, The presence of PANI in an ITO/PANI/MEH-PPV/A1 device makes little difference to its optical output and quantum efficiency. SSPS shows good electron injection in an ITO/MEH-PPV/SSPS/A1 device, When SSPS ionomer is introduced in an ITO/PANI/MEH-PPV/SSPS/A1 device, a larger enhancement in optical output is obtained and its quantum efficiency is also enhanced because of its balanced charge injection. The electroluminescent device associated with SSPS ionomer and PANI is a well-designed structure to improve stability and efficiency. Copyright (C) 2000 John Wiley & Sons, Ltd.
Publisher
JOHN WILEY SONS LTD
Issue Date
2000-01
Language
ENG
Keywords

ELECTROLUMINESCENCE; EFFICIENCY

Citation

ADVANCED MATERIALS FOR OPTICS AND ELECTRONICS, v.10, no.1, pp.17 - 23

ISSN
1057-9257
URI
http://hdl.handle.net/10203/5146
Appears in Collection
CBE-Journal Papers(저널논문)
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